PMID- 8565646 OWN - NLM STAT- MEDLINE DCOM- 19960304 LR - 20180214 IS - 0301-0171 (Print) IS - 0301-0171 (Linking) VI - 72 IP - 1 DP - 1996 TI - The detection of contiguous gene deletions at the neurofibromatosis 1 locus with fluorescence in situ hybridization. PG - 95-8 AB - Neurofibromatosis type 1 (NF1) is a common genetic disorder characterized primarily by the development of multiple neurofibromas and pigmentary changes. The recent identification of contiguous gene deletions in NF1, a previously unrecognized molecular basis for this disorder, raises important questions regarding deletion frequency in the patient population and the role that contiguous genes may play in the physical manifestations of NF1 patients. To facilitate the identification of patients with large NF1 deletions, we have isolated clones carrying large genomic segments from the NF1 locus and tested their efficacy as probes for fluorescence in situ hybridization (FISH). Clone P1-9 spans approximately 65 kb of the NF1 gene, including exons 2-11, and clone P1-12 carries approximately 55 kb of NF1 intron 27B. FISH studies performed with P1-9, P1-12, and a set of overlapping 1F10 cosmid clones mapping telomeric to the NF1 locus identified large deletions in two new neurofibromatosis type 1 patients who, like previously characterized deletion patients, had mildly dysmorphic facial features and large numbers of cutaneous neurofibromas. FAU - Leppig, K A AU - Leppig KA AD - Department of Pediatrics, University of Washington, Seattle, USA. FAU - Viskochil, D AU - Viskochil D FAU - Neil, S AU - Neil S FAU - Rubenstein, A AU - Rubenstein A FAU - Johnson, V P AU - Johnson VP FAU - Zhu, X L AU - Zhu XL FAU - Brothman, A R AU - Brothman AR FAU - Stephens, K AU - Stephens K LA - eng GR - K08 NS01492/NS/NINDS NIH HHS/United States GR - M01-RR0064/RR/NCRR NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - Switzerland TA - Cytogenet Cell Genet JT - Cytogenetics and cell genetics JID - 0367735 RN - 0 (Genetic Markers) SB - IM MH - Chromosome Aberrations/diagnosis MH - *Chromosome Deletion MH - Chromosome Disorders MH - *Genes, Neurofibromatosis 1 MH - Genetic Markers MH - Humans MH - In Situ Hybridization, Fluorescence MH - Neurofibromatosis 1/*genetics MH - Restriction Mapping MH - Syndrome EDAT- 1996/01/01 00:00 MHDA- 1996/01/01 00:01 CRDT- 1996/01/01 00:00 PHST- 1996/01/01 00:00 [pubmed] PHST- 1996/01/01 00:01 [medline] PHST- 1996/01/01 00:00 [entrez] AID - 10.1159/000134171 [doi] PST - ppublish SO - Cytogenet Cell Genet. 1996;72(1):95-8. doi: 10.1159/000134171.